Law enforcement experts say non-compliant sex offenders are more dangerous than any other type of offender.

"The recidivism rate for sex offenders is greatly higher than any other crime," said Dave Benelli.

Benelli served eight years as commander of the NOPD sex crimes unit.

To help track non-compliant offenders, 23 states now require some degree of electronic monitoring.

The Mississippi House and Senate recently gave final approval to a bill that would require GPS tracking for convicted sex offenders who fail to register. The legislation is nicknamed "Lenora's Law" after Lenora Edgehard. Edgehard was found murdered in her home in August of 2012. The suspect in her death is her neighbor, a convicted sex offender who had failed to register.

The I-Team looked at non-compliant sex offenders in southeast Louisiana's three largest parishes. As of April 25, 27 offenders were non-compliant in St. Tammany Parish. 29 offenders remained non-compliant who were last registered in Jefferson Parish, and 57 offenders are listed as non-compliant in Orleans Parish.

Benelli said the number of non-compliant offenders is not unusually higher than other cities of similar size. However, he said any non-compliant offender poses a threat, especially those who target children.

"The pedophiles are very conniving," said Benelli. "They'll do everything they can to commit a crime."

Even proponents of GPS tracking take note of its controversy in terms of constitutional rights. The Electronic Privacy Information Center, an organization that focuses on the protection of privacy rights, believes electronic tracking runs afoul of Fourth Amendment rights, which protect against unreasonable search and seizure.

"There's an important privacy interest in an individual's movements over time," said Alan Butler with the Electronic Privacy Information Center. "It can reveal your associations, your beliefs, your activities, things everyone believes to be private."

Butler believes the ability for states to electronically track sex offenders can have a negative impact on the general public too.

"Long-term tracking sort of highlights the dangers for the everyday citizen, chilled speech, association and activities," said Butler.

Louisiana already has stiff laws for sex offenders. It's one of nine states that allow for chemical castration in certain cases.

Although privacy organizations are against GPS tracking, Benelli believes it's considerably less invasive to alternatives like castration.

"If we have the technology, an uninvasive technology to protect other children from being molested, if we have the technology then I think we use every means possible to protect our children," said Benelli.

On Friday, our series on tracking sex offender continues on WDSU and WDSU.com. Our investigation will look into problems other states have had with GPS devices and we ask a lawmaker about the possibility of legislation coming to Louisiana.

Everyone has access to sex offender registries that law enforcement agencies keep. To look up sex offenders in your area, click here.

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